CN104384228B - The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid - Google Patents
The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid Download PDFInfo
- Publication number
- CN104384228B CN104384228B CN201410479003.8A CN201410479003A CN104384228B CN 104384228 B CN104384228 B CN 104384228B CN 201410479003 A CN201410479003 A CN 201410479003A CN 104384228 B CN104384228 B CN 104384228B
- Authority
- CN
- China
- Prior art keywords
- frame
- pickling
- steel
- strength
- followed successively
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides a kind of acid and roll the process control method producing high-strength IF steel, its processing step includes hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches the processes such as rolling。The process control device producing high-strength IF steel is rolled in a kind of acid that the present invention also provides for, and controls module, stretching-bending straightener aligning control module, pickling control module and five stand mill continuous rolling including laser welder and controls module。The process control method and device thereof that produce high-strength IF steel are rolled in acid provided by the invention, by the technical parameter in laser welder, stretching-bending straightener aligning, turbulence acid dip and the several committed step of five stand mill continuous rolling is controlled, produce obtain intensity height, the phosphorous high-strength IF steel of plate shape is good, thickness deviation is little width >=1700mm, thickness >=5mm。
Description
Technical field
The present invention relates to steelmaking technical field, roll the process control method and device thereof that produce high-strength IF steel particularly to a kind of acid, for producing the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm。
Background technology
High-strength IF steel is the class steel grade developed to make steel plate have higher intensity on the basis of good deep hole pinching simultaneously。In carbon content (mass fraction) is less than 0.01%, adds and form strong carbon, the element ti of nitride or Nb, or what P and Mn obtained。This kind of steel is mainly used in automobile exterior panel, replaces mild steel St13, St14, so that automobile component is thinning, loss of weight。
In existing disclosed Patents document, high-strength IF steel has following characteristics: after (1) annealing, finished strip intensity rank is low, in the patent of (bulletin) number CN102899564A as open in Chinese patent, disclose a kind of ultra-deep and rush Ti+Nb IF steel cold-rolling mill annealing process, the tensile strength of strip steel is 280-325Mpa, and annealing way adopt be bell-type annealing, energy consumption is more relatively costly；(2) Chinese patent open (bulletin) number CN102816975, discloses a kind of high r value high-strength IF steel production technology, but its technological parameter is not directed to pickling rolling production process。
Although above patent and pertinent literature are the manufacture methods about high-strength IF steel, but all it is limited to laboratory research and development, do not mention the mode of the industrialized production of phosphorous high-strength IF steel, and acid roll commercial process related process parameters control, particularly to width >=1700mm thickness >=phosphorous high-strength IF steel of 5mm, easily segregation is formed at crystal boundary owing to strip steel contains P elements, if acid is rolled, process parameter control in production process is inaccurate will cause strip steel broken belt, has a strong impact on acid and rolls normal production。Therefore, it is achieved the industrialized production of width >=1700mm thickness >=phosphorous high-strength IF steel of 5mm will be very necessary。
Accompanying drawing explanation
Fig. 1 rolls the flow chart of the process control device producing high-strength IF steel for the acid that the embodiment of the present invention provides。
Summary of the invention
The technical problem to be solved is to provide a kind of acid and rolls the process control method and device thereof that produce high-strength IF steel, for the phosphorous high-strength IF steel of industrialized production width >=1700mm, thickness >=5mm。
For solving above-mentioned technical problem, the invention provides a kind of acid and roll the process control method producing high-strength IF steel, the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm is produced suitable in pickling five frame cold continuous rolling thread industrialization, processing step includes hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, and the technical parameter in processing step controls as follows:
(1) laser welder: bonding power is 9000～12000W, speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900m/min；
(2) stretching-bending straightener aligning: elongation percentage is 0.5～1.1%, 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
(3) pickling: pickling temperature is 70～90 DEG C, pickling speed is 40～220m/min；
(4) five stand mill continuous rolling:
The pressure apportionment ratio of F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2,40～70N/mm2；
F1～F5 five frame work roll bending power is followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
As preferably, described bonding power is 11000W, and described speed of welding is 3.5m/min, and described wire feed rate is 4.5m/min, and described annealing electric current is 110A, and described annealing temperature is 700m/min；Described elongation percentage is 0.8%, and described 1# bending unit insertion is 19mm, and described 2# bending unit insertion is 17mm, and described 3# resistance straightening unit insertion is 8mm；Described pickling temperature is 75.8 DEG C, and described pickling speed is 60～199m/min；The pressure apportionment ratio of described F1～F5 five frame is followed successively by 31.7%, 31%, 28.3%, 24.1%, 0.5%；Between described F1～F5 five frame, unit tension is followed successively by 50N/mm2, 150N/mm2, 175N/mm2, 195N/mm2, 210N/mm2, 65N/mm2；Described F1～F5 five frame work roll bending power is followed successively by 453KN, 462KN, 467KN, 456KN, 153KN。
As preferably, described bonding power is 12000W, and described speed of welding is 4.5m/min, and described wire feed rate is 4m/min, and described annealing electric current is 120A, and described annealing temperature is 800m/min；Described elongation percentage is 0.7%, and described 1# bending unit insertion is 16mm, and described 2# bending unit insertion is 15mm, and described 3# resistance straightening unit insertion is 7mm；Described pickling temperature is 82.4 DEG C, and described pickling speed is 75～160m/min；The pressure apportionment ratio of described F1～F5 five frame is followed successively by 29.5%, 28.7%, 26.2%, 22.3%, 0.6%；Between described F1～F5 five frame, unit tension is followed successively by 55N/mm2, 150N/mm2, 170N/mm2, 200N/mm2, 215N/mm2, 60N/mm2；Described F1～F5 five frame work roll bending power is followed successively by 483KN, 472KN, 469KN, 476KN, 163KN。
Present invention also offers a kind of process control device rolling for acid and producing high-strength IF steel, the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm is produced suitable in pickling five frame cold continuous rolling thread industrialization, processing step includes uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, including:
Laser welder controls module: control bonding power is 9000～12000W, and speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900m/min；
Stretching-bending straightener aligning controls module: controlling elongation percentage is 0.5～1.1%, and 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
Pickling controls module: controlling pickling temperature is 70～90 DEG C, and pickling speed is 40～220m/min；
Five stand mill continuous rolling controls module:
The pressure apportionment ratio controlling F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
From inlet of rolling mill to milling train control of export F1～F5 five frame unit tension be followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2, 40～70N/mm2；
Control F1～F5 five frame work roll bending power to be followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
The process control method and device thereof that produce high-strength IF steel are rolled in acid provided by the invention, by the technical parameter in laser welder, stretching-bending straightener aligning, turbulence acid dip and the several critical process step of five stand mill continuous rolling is controlled, final production obtains tensile strength >=460MPa after continuous annealing, the plate shape meansigma methods phosphorous high-strength IF steel less than width >=1700mm within 0.5% of 2.0IU, thickness deviation, thickness >=5mm, it is achieved that width >=1700mm thickness >=phosphorous high-strength IF steel of 5mm rolls the industrialized production producing line in acid。
Detailed description of the invention
The process control method producing high-strength IF steel is rolled in a kind of acid that the embodiment of the present invention provides, the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm is produced suitable in pickling five frame cold continuous rolling thread industrialization, processing step includes hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, and the technical parameter in its processing step controls as follows:
(1) laser welder: bonding power is 9000～12000W, speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900m/min；
(2) stretching-bending straightener aligning: elongation percentage is 0.5～1.1%, 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
(3) pickling: pickling temperature is 70～90 DEG C, pickling speed is 40～220m/min；
(4) five stand mill continuous rolling:
The pressure apportionment ratio of F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2, 40～70N/mm2；
F1～F5 five frame work roll bending power is followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
Referring to Fig. 1, the process control device producing high-strength IF steel is rolled in a kind of acid that the embodiment of the present invention provides, mainly including laser welder and control module, stretching-bending straightener aligning control module, pickling control module and five stand mill continuous rolling control module, each control technical parameter controlling module is as follows:
Laser welder controls module: control bonding power is 9000～12000W, and speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900m/min；
Stretching-bending straightener aligning controls module: controlling elongation percentage is 0.5～1.1%, and 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
Pickling controls module: controlling pickling temperature is 70～90 DEG C, and pickling speed is 40～220m/min；
Five stand mill continuous rolling controls module:
The pressure apportionment ratio controlling F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
From inlet of rolling mill to milling train control of export F1～F5 five frame unit tension be followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2, 40～70N/mm2；
Control F1～F5 five frame work roll bending power to be followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
By the examples below acid provided by the invention is rolled the process control method producing high-strength IF steel and device illustrates。
Embodiment 1
The composition of phosphorous high-strength IF steel incoming hot rolled slab is: C:0.0024%, Mn:1.58%, Si:0.23%, P:0.086%, S:0.007%, Ti:0.019%, N:0.0025%, B:0.0008%, Nb:0.03%。This incoming hot rolled slab it is sequentially carried out hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, producing the phosphorous high-strength IF steel obtaining width >=1700mm, thickness >=5mm。Wherein, by corresponding control module, associated technical parameters is controlled as follows in several critical process step:
The bonding power of laser-beam welding machine is 9000W, speed of welding to be 2m/min, wire feed rate be 2m/min, annealing electric current are 100A, annealing temperature is 500m/min。Withdrawal straightening machine elongation percentage is 0.5%, 1# bending unit insertion 10mm, 2# bending unit insertion 8mm, 3# resistance straightening unit insertion 4mm。Pickling speed 40～150m/min, pickling temperature 70 DEG C。
The pressure apportionment ratio of milling train: the pressure apportionment ratio of F1～F5 five frame is followed successively by: 25%, 25%, 25%, 20%, 0.3%。From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 40N/mm2、130N/mm2、150N/mm2、150N/mm2、160N/mm2、40N/mm2。Inlet of rolling mill speed is 64m/min。Milling train F1～F5 work roll bending power is followed successively by: 400KN, 400KN, 400KN, 400KN, 100KN。
Produce obtain width >=1700mm, thickness >=5mm phosphorous high-strength IF steel, its plate shape glacing flatness meansigma methods is 1.8IU, thickness deviation, within 0.5%, meets its plate shape glacing flatness of the chill rollback request of phosphorous high-strength IF steel at below 5IU, thickness deviation standard within 1%。
Embodiment 2
The composition of phosphorous high-strength IF steel incoming hot rolled slab is: C:0.0024%, Mn:1.58%, Si:0.23%, P:0.086%, S:0.007%, Ti:0.019%, N:0.0025%, B:0.0008%, Nb:0.03%。This incoming hot rolled slab it is sequentially carried out hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, producing the phosphorous high-strength IF steel obtaining width >=1700mm, thickness >=5mm。Wherein, by corresponding control module, associated technical parameters is controlled as follows in several critical process step:
The bonding power of laser-beam welding machine is 11000W, speed of welding to be 3.5m/min, wire feed rate be 4.5m/min, annealing electric current are 110A, annealing temperature is 700m/min。Withdrawal straightening machine elongation percentage is 0.8%, 1# bending unit insertion 19mm, 2# bending unit insertion 17mm, 3# resistance straightening unit insertion 8mm。Pickling speed 60～199m/min, pickling temperature 75.8 DEG C。
The pressure apportionment ratio of milling train: the pressure apportionment ratio of F1～F5 five frame is followed successively by: 31.7%, 31%, 28.3%, 24.1%, 0.5%。From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 50N/mm2、150N/mm2、175N/mm2、195N/mm2、210N/mm2、65N/mm2。Inlet of rolling mill speed is 64m/min。Milling train F1～F5 work roll bending power is followed successively by: 453KN, 462KN, 467KN, 456KN, 153KN。
Produce obtain width >=1700mm, thickness >=5mm phosphorous high-strength IF steel, its plate shape glacing flatness meansigma methods is 1.8IU, thickness deviation, within 0.5%, meets its plate shape glacing flatness of the chill rollback request of phosphorous high-strength IF steel at below 5IU, thickness deviation standard within 1%。
Embodiment 3
The composition of phosphorous high-strength IF steel incoming hot rolled slab is: C:0.0023%, Mn:1.57%, Si:0.26%, P:0.087%, S:0.008%, Ti:0.018%, N:0.0026%, B:0.0009%, Nb:0.027%。This incoming hot rolled slab it is sequentially carried out hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, producing the phosphorous high-strength IF steel obtaining width >=1700mm, thickness >=5mm。Wherein, by corresponding control module, associated technical parameters is controlled as follows in several critical process step:
The bonding power of laser-beam welding machine is 12000W, speed of welding to be 4.5m/min, wire feed rate be 4m/min, annealing electric current are 120A, annealing temperature is 800m/min。Withdrawal straightening machine elongation percentage is 0.7%, 1# bending unit insertion 16mm, 2# bending unit insertion 15mm, 3# resistance straightening unit insertion 7mm。Pickling speed 75～160m/min, pickling temperature 82.4 DEG C。
The pressure apportionment ratio of milling train: the pressure apportionment ratio of F1～F5 five frame is followed successively by: 29.5%, 28.7%, 26.2%, 22.3%, 0.6%。From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 55N/mm2、150N/mm2、170N/mm2、200N/mm2、215N/mm2、60N/mm2。Inlet of rolling mill speed is 75m/min。Milling train F1～F5 five frame work roll bending power is followed successively by: 483KN, 472KN, 469KN, 476KN, 163KN。
Produce obtain width >=1700mm, thickness >=5mm phosphorous high-strength IF steel, its plate shape glacing flatness meansigma methods is 1.9IU, thickness deviation, within 0.5%, meets its plate shape glacing flatness of the chill rollback request of phosphorous high-strength IF steel at below 5IU, thickness deviation standard within 1%。
Embodiment 4
The composition of phosphorous high-strength IF steel incoming hot rolled slab is: C:0.0023%, Mn:1.57%, Si:0.26%, P:0.087%, S:0.008%, Ti:0.018%, N:0.0026%, B:0.0009%, Nb:0.027%。This incoming hot rolled slab it is sequentially carried out hot rolled coil uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, producing the phosphorous high-strength IF steel obtaining width >=1700mm, thickness >=5mm。Wherein, by corresponding control module, associated technical parameters is controlled as follows in several critical process step:
The bonding power of laser-beam welding machine is 12000W, speed of welding to be 6m/min, wire feed rate be 7m/min, annealing electric current are 180A, annealing temperature is 900m/min。Withdrawal straightening machine elongation percentage is 1.1%, and 1# bending unit insertion 20mm, 2# bending unit insertion is 18mm, 3# resistance straightening unit insertion is 10mm。Pickling speed 160～220m/min, pickling temperature 90 DEG C。
The pressure apportionment ratio of milling train: the pressure apportionment ratio of F1～F5 five frame is followed successively by: 35%, 35%, 33%, 27%, 1%。From inlet of rolling mill to milling train, export unit tension between F1～F5 five frame be followed successively by: 70N/mm2、170N/mm2、190N/mm2、210N/mm2、230N/mm2、70N/mm2。Inlet of rolling mill speed is 75m/min。Milling train F1～F5 five frame work roll bending power is followed successively by: 500KN, 500KN, 500KN, 500KN, 300KN。
Produce obtain width >=1700mm, thickness >=5mm phosphorous high-strength IF steel, its plate shape glacing flatness meansigma methods is 1.9IU, thickness deviation, within 0.5%, meets its plate shape glacing flatness of the chill rollback request of phosphorous high-strength IF steel at below 5IU, thickness deviation standard within 1%。
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to example, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention。
Claims (4)
1. the process control method producing high-strength IF steel is rolled in an acid, the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm is produced suitable in pickling five frame cold continuous rolling thread industrialization, processing step includes uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, it is characterized in that, the technical parameter in processing step controls as follows:
(1) laser welder: bonding power is 9000～12000W, speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900 DEG C；
(2) stretching-bending straightener aligning: elongation percentage is 0.5～1.1%, 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
(3) pickling: pickling temperature is 70～90 DEG C, pickling speed is 40～220m/min；
(4) five stand mill continuous rolling:
The pressure apportionment ratio of F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
Unit tension between inlet of rolling mill and F1 frame, between F1～F5 five frame and between F5 frame and milling train outlet is followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2, 40～70N/mm2；
F1～F5 five frame work roll bending power is followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
2. the process control method producing high-strength IF steel is rolled in acid according to claim 1, it is characterized in that: described bonding power is 11000W, described speed of welding is 3.5m/min, and described wire feed rate is 4.5m/min, described annealing electric current is 110A, and described annealing temperature is 700 DEG C；Described elongation percentage is 0.8%, and described 1# bending unit insertion is 19mm, and described 2# bending unit insertion is 17mm, and described 3# resistance straightening unit insertion is 8mm；Described pickling temperature is 75.8 DEG C, and described pickling speed is 60～199m/min；The pressure apportionment ratio of described F1～F5 five frame is followed successively by 31.7%, 31%, 28.3%, 24.1%, 0.5%；Unit tension between described inlet of rolling mill and F1 frame, between F1～F5 five frame and between F5 frame and milling train outlet is followed successively by 50N/mm2, 150N/mm2, 175N/mm2, 195N/mm2, 210N/mm2, 65N/mm2；Described F1～F5 five frame work roll bending power is followed successively by 453KN, 462KN, 467KN, 456KN, 153KN。
3. the process control method producing high-strength IF steel is rolled in acid according to claim 1, it is characterized in that: described bonding power is 12000W, described speed of welding is 4.5m/min, and described wire feed rate is 4m/min, described annealing electric current is 120A, and described annealing temperature is 800 DEG C；Described elongation percentage is 0.7%, and described 1# bending unit insertion is 16mm, and described 2# bending unit insertion is 15mm, and described 3# resistance straightening unit insertion is 7mm；Described pickling temperature is 82.4 DEG C, and described pickling speed is 75～160m/min；The pressure apportionment ratio of described F1～F5 five frame is followed successively by 29.5%, 28.7%, 26.2%, 22.3%, 0.6%；Unit tension between described inlet of rolling mill and F1 frame, between F1～F5 five frame and between F5 frame and milling train outlet is followed successively by 55N/mm2, 150N/mm2, 170N/mm2, 200N/mm2, 215N/mm2, 60N/mm2；Described F1～F5 five frame work roll bending power is followed successively by 483KN, 472KN, 469KN, 476KN, 163KN。
4. the process control device producing high-strength IF steel is rolled in an acid, the phosphorous high-strength IF steel of width >=1700mm, thickness >=5mm is produced suitable in pickling five frame cold continuous rolling thread industrialization, processing step includes uncoiler uncoiling, laser welder, stretching-bending straightener aligning, pickling, rinsing, circle shear trimming, five stand mill continuous rolling and batches rolling, it is characterized in that, including:
Laser welder controls module: control bonding power is 9000～12000W, and speed of welding is 2～6m/min, and wire feed rate is 2～7m/min, and annealing electric current is 100～180A, and annealing temperature is 500～900 DEG C；
Stretching-bending straightener aligning controls module: controlling elongation percentage is 0.5～1.1%, and 1# bending unit insertion is 10～20mm, 2# bending unit insertion be 8～18mm, 3# resistance straightening unit insertion is 4～10mm；
Pickling controls module: controlling pickling temperature is 70～90 DEG C, and pickling speed is 40～220m/min；
Five stand mill continuous rolling controls module:
The pressure apportionment ratio controlling F1～F5 five frame is followed successively by: 25～35%, 25～35%, 25～33%, 20～27%, 0.3～1%；
Unit tension between control inlet of rolling mill and F1 frame, between F1～F5 five frame and between F5 frame and milling train outlet is followed successively by: 40～70N/mm2, 130～170N/mm2, 150～190N/mm2, 150～210N/mm2, 160～230N/mm2, 40～70N/mm2；
Control F1～F5 five frame work roll bending power to be followed successively by: 400～500KN, 400～500KN, 400～500KN, 400～500KN, 100～300KN。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479003.8A CN104384228B (en) | 2014-09-18 | 2014-09-18 | The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479003.8A CN104384228B (en) | 2014-09-18 | 2014-09-18 | The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104384228A CN104384228A (en) | 2015-03-04 |
| CN104384228B true CN104384228B (en) | 2016-06-22 |
Family
ID=52602239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410479003.8A Active CN104384228B (en) | 2014-09-18 | 2014-09-18 | The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104384228B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149810B (en) * | 2015-08-12 | 2017-06-16 | 北京首钢冷轧薄板有限公司 | Prevent the welding method of carbon equivalent high strip steel weld joint broken belt |
| CN107497878A (en) * | 2017-08-09 | 2017-12-22 | 北京首钢冷轧薄板有限公司 | A kind of dual phase steel acid rolling production process method |
| CN107557684B (en) * | 2017-08-28 | 2019-05-03 | 北京首钢冷轧薄板有限公司 | A kind of DH590MPa acid rolling production process control method |
| CN109402525B (en) * | 2018-11-28 | 2020-09-04 | 北京首钢冷轧薄板有限公司 | Processing method of 780 MPa-grade yield strength 1000 MPa-grade tensile strength dual-phase steel |
| CN109825761B (en) * | 2019-01-10 | 2021-03-05 | 邯郸钢铁集团有限责任公司 | Stable rolling method of 600-micron thin 250MPa high-phosphorus IF steel |
| CN112007950B (en) * | 2019-05-31 | 2022-07-15 | 上海梅山钢铁股份有限公司 | Rolling method of bundle strip steel with tensile strength of 500MPa |
| CN111015108B (en) * | 2019-12-19 | 2021-11-02 | 北京首钢股份有限公司 | Method for controlling surface defects of pickled plate |
| CN113680822B (en) * | 2021-08-17 | 2023-04-28 | 北京首钢冷轧薄板有限公司 | Preparation method of thin-specification high-phosphorus low-alloy high-strength steel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3492159B2 (en) * | 1997-08-15 | 2004-02-03 | 新日本製鐵株式会社 | Method for producing pickled hot-rolled steel sheet |
| CN102409225B (en) * | 2010-09-21 | 2014-05-07 | 鞍钢股份有限公司 | High-strength superfine grain cold rolling IF (Interstitial Free) steel and production method thereof |
| CN102581008A (en) * | 2012-03-01 | 2012-07-18 | 河北钢铁股份有限公司唐山分公司 | Processing method for producing low-cost high-formability IF (interstitial-free) steel |
| CN102816975B (en) * | 2012-09-04 | 2013-11-20 | 北京科技大学 | Process for producing high-strength interstitial-free (IF) steel with high plastic strain ratio (r) value |
| CN103551382B (en) * | 2013-11-07 | 2015-08-26 | 首钢总公司 | A kind of production method solved containing P high-strength IF hot-strip straightening broken belt |
-
2014
- 2014-09-18 CN CN201410479003.8A patent/CN104384228B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104384228A (en) | 2015-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104384228B (en) | The process control method and device thereof that produce high-strength IF steel are rolled in a kind of acid | |
| CN101745544B (en) | Method for controlling transverse thickness difference of medium-low grade electrical steel | |
| CN103625671B (en) | Method for producing high-strength strapping steel in acid rolling mode | |
| CN103521518B (en) | The hot continuous rolling process of stainless plate strip coil | |
| CN101844162B (en) | Method for removing residual stress of hot-rolling high-strength steel | |
| CN107557695B (en) | A kind of sour rolling production process control method of CP980MPa Multiphase Steel | |
| CN207026109U (en) | A kind of white skin rolling annealing and pickling unit in new type stainless steel. corrosion resistance arrowband | |
| CN106244967B (en) | Cold-rolling of steel plate coating integration produces unit and its production technology | |
| CN103706637B (en) | A kind of cold rolling abbreviated system and unit thereof | |
| CN104971959A (en) | High-strength closed sectional material hot roll forming process | |
| CN109402525A (en) | A kind of dual phase steel processing method of 1000MPa grades of tensile strength of 780MPa level yield strength | |
| CN104550230A (en) | Novel black stainless steel strip rolling process and unit | |
| CN103191928A (en) | 304 stainless steel strip and production method thereof | |
| CN107557684B (en) | A kind of DH590MPa acid rolling production process control method | |
| CN106222386B (en) | A kind of method for manufacturing dual phase steel | |
| CN101767106A (en) | Hot rolling process of stainless plate strip coil | |
| CN107587089B (en) | Process for eliminating withdrawal and straightening lines on surface of galvanized door sheet steel | |
| CN110465561B (en) | Hot-rolled strip steel flattening and straightening process | |
| CN107497878A (en) | A kind of dual phase steel acid rolling production process method | |
| CN204412757U (en) | A kind of new type stainless steel. corrosion resistance casting skin strip-rolling technique unit | |
| CN110004360A (en) | A kind of yield strength is not less than 650MPa grades of bendings cold rolling hard steel band and manufacturing methods | |
| CN108034957A (en) | High-carbon steel welds acid washing method | |
| CN111020385B (en) | Vanadium-containing hot-rolled pickled plate and pickling method thereof | |
| CN103031426B (en) | Method for improving performance of non-oriented electrical steel efficient and high-grade product | |
| CN104294193B (en) | A kind of processing method of stability contorting 5754H24 state aluminium alloy boards mechanical property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |